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The Unknown Peter Sellers
- Anno: 2000
- Nazione: Canada, United States of America
- Genere: Documentario
- Studio: Crew Neck Productions
- Parola chiave: depression, filmmaking
- Direttore: John Scheinfeld, David Leaf
- Cast: Fred Applegate, David Frost, Richard Lester, David Lodge, Shirley MacLaine, Spike Milligan